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To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. In one such episode, a 650g falcon flying at 19.0m/s hit a 1.60kg raven flying at 9.0m/s . The falcon hit the raven at right angles to its original path and bounced back at 5.0m/s . (These figures were estimated by the author as he watched this attack occur in northern New Mexico.)
a) By what angle did the falcon change the raven's direction of motion?
b) What was the raven's speed right after the collision?
Sketch a principle ray diagram showing the formation of the image. compute the position, size, orientation (erect or inverted), and nature (real or virtual) of the image.
A 2.78-kg steel ball strikes a massive wall at 10.0 m/s at an angle of ? = 60.0° with the plane of the wall, what is the average force exerted by the wall on the ball
If the plant produces electric energy at the rate of 1.3GW , how much exhaust heat is discharged per hour
Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 9.97 cubic meter of water in kg
An electron and a proton are each placed at rest in a uniform electric field of magnitude 546 N/C. Compute the speed of each particle 52 ns after being free.
A 23.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface, What is the force of friction acting on the block if T = 20.56 N
Suppose one gallon of gasoline produces 1.1 x10^8 J of energy, and this energy is enough to operate a car for 18 miles. An aspirin tablet has a mass of 275 mg. If the aspirin could be converted completely into thermal energy, how many miles would ..
A 60.0 kg crate is slid up an inclined ramp 2m long onto a platform 1.6 m above the floor level. A 452 N force, parallel to the ramp, is needed to slide the crate up the ramp at a constant speed. How much work is done in sliding the crate up the r..
A flight attendant pulls her 69N flight bag a distance of 246m along a level airport floor at a constant velocity. The force she exerts is 37N at an angle of 58° above the horizontal. Find the coefficient of kinetic friction between flight bag and..
A positive point charge Q1 = 5.0*10-5 C is fixed at the origin of coordinates, Find the location(s) where the total electric field is equal to zero
After going through a bad break-up with your significant other you end up drinking half a case of beer. The next day you decide the cloud of despair must be fought with exercise. How much longer will it take you to burn off the calories of the bee..
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm). Continue working the problem above by calculating the direction of the force that Q1 exerts on Q..
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